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标题：基于负压关断和栅极箝位的IR2110驱动电路的设计与研究 |
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作者：陈 翀，程良伦，管 梁 |
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| 2012年第11期 访问次数：303次 |
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摘 要：对于采用桥式驱动集成芯片IR2110作为IGBT驱动的逆变器，存在着各桥臂驱动信号相互干扰的问题，严重时甚至会导致上下桥臂直通，造成短路的现象。针对上述问题，文中对IGBT驱动电路的抗干扰技术作了具体分析，提出了关断时负压和栅极电平箝位两种有效的抗干扰方法。经实验验证，这两种方法都可以有效的解决IGBT驱动信号的干扰问题，保证整个逆变系统的稳定工作。
关键词：IR2110；逆变器；箝位；负压
Abstract: For the inverter which used bridge type driving integrated chips IR2110 as the IGBT driver, there was a problem that the bridge drive signals interfered with each other and when the problem is serious it would lead to the upper and lower switch through or short-circuit. According to the above problems， this paper made a detailed analysis in the IGBT driver circuit for anti-jamming technology, proposed two effective anti-jamming methods：turn-off negative voltage circuit and a gate-level clamp circuit. Experimental testing that both methods can effectively solving the interference problem of IGBT drive signals and ensuring the stability of the entire inverter system.
Key words: IR2110; inverter; clamp; negative voltage
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